TFT CO., LTD
8Patents
0Active
8Granted
30Portfolio score
Filing activity: Oct 25, 1978 → Sep 8, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5995553A | Encoder/decoder for emergency alert system | Electricity | 91 | Expired |
| US5917887A | Emergency alert communication system wherein emergency messages are received by a radio frequency receiver and routed to a telephone device | Electricity | 25 | Expired |
| US4710970A | Method of and apparatus for generating a frequency modulated ultrahigh frequency radio transmission signal | Electricity | 23 | Expired |
| US4259074A | Method for making dentures | Human Necessities | 22 | Expired |
| US5065450A | Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system | Electricity | 7 | Expired |
| US5046124A | Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system | Electricity | 6 | Expired |
| USRE34540E | Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system | General | 4 | Expired |
| USRE34499E | Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system | General | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.